uLCD_4DGL_Text.cpp

00001 //
00002 // uLCD_4DGL is a class to drive 4D Systems TFT touch screens
00003 //
00004 // Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
00005 // Modifed for Goldelox processor <2013> Jim Hamblen
00006 //
00007 // uLCD_4DGL is free software: you can redistribute it and/or modify
00008 // it under the terms of the GNU General Public License as published by
00009 // the Free Software Foundation, either version 3 of the License, or
00010 // (at your option) any later version.
00011 //
00012 // uLCD_4DGL is distributed in the hope that it will be useful,
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 // GNU General Public License for more details.
00016 //
00017 // You should have received a copy of the GNU General Public License
00018 // along with uLCD_4DGL.  If not, see <http://www.gnu.org/licenses/>.
00019 
00020 #include "mbed.h"
00021 #include "uLCD_4DGL.h"
00022 
00023 //****************************************************************************************************
00024 void uLCD_4DGL :: set_font_size(char width, char height)     // set font size
00025 {
00026     if (current_orientation == IS_PORTRAIT) {
00027         current_fx = width;
00028         current_fy = height;
00029     } else {
00030         current_fy = height;
00031         current_fx = width;
00032     }
00033     max_col = current_w / (current_fx*current_wf);
00034     max_row = current_h / (current_fy*current_hf);
00035 }
00036 
00037 //****************************************************************************************************
00038 void uLCD_4DGL :: set_font(char mode)     // set font - system or SD media
00039 {
00040     char command[3]= "";
00041 
00042     command[0] = SETFONT;
00043     command[1] = 0;
00044     command[2] = mode;
00045 
00046     current_font = mode;
00047 
00048     if (current_orientation == IS_PORTRAIT) {
00049         current_w = SIZE_X;
00050         current_h = SIZE_Y;
00051     } else {
00052         current_w = SIZE_Y;
00053         current_h = SIZE_X;
00054     }
00055 
00056     switch (mode) {
00057         case FONT_5X7 :
00058 
00059             current_fx = 6;
00060             current_fy = 8;
00061             break;
00062         case FONT_7X8 :
00063             current_fx = 7;
00064             current_fy = 8;
00065             break;
00066         case FONT_8X8 :
00067             current_fx = 8;
00068             current_fy = 8;
00069             break;
00070         case FONT_8X12 :
00071             current_fx = 8;
00072             current_fy = 12;
00073             break;
00074         case FONT_12X16 :
00075             current_fx = 12;
00076             current_fy = 16;
00077             break;
00078         default:
00079             current_fx = 8;
00080             current_fy = 8;
00081     }
00082 
00083     max_col = current_w / (current_fx*current_wf);
00084     max_row = current_h / (current_fy*current_hf);
00085 
00086     writeCOMMAND(command, 3);
00087 }
00088 
00089 
00090 
00091 //****************************************************************************************************
00092 void uLCD_4DGL :: text_mode(char mode)     // set text mode
00093 {
00094     char command[3]= "";
00095 
00096     command[0] = TEXTMODE;
00097     command[1] = 0;
00098     command[2] = mode;
00099 
00100     writeCOMMAND(command, 3);
00101 }
00102 
00103 //****************************************************************************************************
00104 void uLCD_4DGL :: text_bold(char mode)     // set text mode
00105 {
00106     char command[3]= "";
00107 
00108     command[0] = TEXTBOLD;
00109     command[1] = 0;
00110     command[2] = mode;
00111 
00112     writeCOMMAND(command, 3);
00113 }
00114 
00115 //****************************************************************************************************
00116 void uLCD_4DGL :: text_italic(char mode)     // set text mode
00117 {
00118     char command[3]= "";
00119 
00120     command[0] = TEXTITALIC;
00121     command[1] = 0;
00122     command[2] = mode;
00123 
00124     writeCOMMAND(command, 3);
00125 }
00126 
00127 //****************************************************************************************************
00128 void uLCD_4DGL :: text_inverse(char mode)     // set text mode
00129 {
00130     char command[3]= "";
00131 
00132     command[0] = TEXTINVERSE;
00133     command[1] = 0;
00134     command[2] = mode;
00135 
00136     writeCOMMAND(command, 3);
00137 }
00138 
00139 //****************************************************************************************************
00140 void uLCD_4DGL :: text_underline(char mode)     // set text mode
00141 {
00142     char command[3]= "";
00143 
00144     command[0] = TEXTUNDERLINE;
00145     command[1] = 0;
00146     command[2] = mode;
00147 
00148     writeCOMMAND(command, 3);
00149 }
00150 
00151 //****************************************************************************************************
00152 void uLCD_4DGL :: text_width(char width)     // set text width
00153 {
00154     char command[3]= "";
00155 
00156     command[0] = TEXTWIDTH;
00157     command[1] = 0;
00158     command[2] = width;
00159     current_wf = width;
00160     max_col = current_w / (current_fx*current_wf);
00161     writeCOMMAND(command, 3);
00162 }
00163 
00164 //****************************************************************************************************
00165 void uLCD_4DGL :: text_height(char height)     // set text height
00166 {
00167     char command[3]= "";
00168 
00169     command[0] = TEXTHEIGHT;
00170     command[1] = 0;
00171     command[2] = height;
00172     current_hf = height;
00173     max_row = current_h / (current_fy*current_hf);
00174     writeCOMMAND(command, 3);
00175 }
00176 
00177 
00178 //****************************************************************************************************
00179 void uLCD_4DGL :: text_char(char c, char col, char row, int color)     // draw a text char
00180 {
00181     char command[6]= "";
00182     command[0] = 0xE4; //move cursor
00183     command[1] = 0;
00184     command[2] = row;
00185     command[3] = 0;
00186     command[4] = col;
00187     writeCOMMAND(command, 5);
00188 
00189     command[0] = 0x7F;  //set color
00190 
00191     int red5   = (color >> (16 + 3)) & 0x1F;              // get red on 5 bits
00192     int green6 = (color >> (8 + 2))  & 0x3F;              // get green on 6 bits
00193     int blue5  = (color >> (0 + 3))  & 0x1F;              // get blue on 5 bits
00194 
00195     command[1] = ((red5 << 3)   + (green6 >> 3)) & 0xFF;  // first part of 16 bits color
00196     command[2] = ((green6 << 5) + (blue5 >>  0)) & 0xFF;  // second part of 16 bits color
00197     writeCOMMAND(command, 3);
00198 
00199     command[0] = TEXTCHAR;  //print char
00200     command[1] = 0;
00201     command[2] = c;
00202     writeCOMMAND(command, 3);
00203 
00204 }
00205 
00206 
00207 //****************************************************************************************************
00208 void uLCD_4DGL :: text_string(char *s, char col, char row, char font, int color)     // draw a text string
00209 {
00210 
00211     char command[1000]= "";
00212     int size = strlen(s);
00213     int i = 0;
00214 
00215     set_font(font);
00216 
00217     command[0] = 0xE4; //move cursor
00218     command[1] = 0;
00219     command[2] = row;
00220     command[3] = 0;
00221     command[4] = col;
00222     writeCOMMAND(command, 5);
00223 
00224     command[0] = 0x7F;  //set color
00225     int red5   = (color >> (16 + 3)) & 0x1F;              // get red on 5 bits
00226     int green6 = (color >> (8 + 2))  & 0x3F;              // get green on 6 bits
00227     int blue5  = (color >> (0 + 3))  & 0x1F;              // get blue on 5 bits
00228 
00229     command[1] = ((red5 << 3)   + (green6 >> 3)) & 0xFF;  // first part of 16 bits color
00230     command[2] = ((green6 << 5) + (blue5 >>  0)) & 0xFF;  // second part of 16 bits color
00231     writeCOMMAND(command, 3);
00232 
00233     command[0] = TEXTSTRING;
00234     for (i=0; i<size; i++) command[1+i] = s[i];
00235     command[1+size] = 0;
00236     writeCOMMANDnull(command, 2 + size);
00237 }
00238 
00239 
00240 
00241 //****************************************************************************************************
00242 void uLCD_4DGL :: locate(char col, char row)     // place text curssor at col, row
00243 {
00244     char command[5] = "";
00245     current_col = col;
00246     current_row = row;
00247     command[0] = MOVECURSOR; //move cursor
00248     command[1] = 0;
00249     command[2] = current_row;
00250     command[3] = 0;
00251     command[4] = current_col;
00252     writeCOMMAND(command, 5);
00253 }
00254 
00255 //****************************************************************************************************
00256 void uLCD_4DGL :: color(int color)     // set text color
00257 {
00258     char command[5] = "";
00259     current_color = color;
00260     command[0] = 0x7F;  //set color
00261 
00262     int red5   = (color >> (16 + 3)) & 0x1F;              // get red on 5 bits
00263     int green6 = (color >> (8 + 2))  & 0x3F;              // get green on 6 bits
00264     int blue5  = (color >> (0 + 3))  & 0x1F;              // get blue on 5 bits
00265 
00266     command[1] = ((red5 << 3)   + (green6 >> 3)) & 0xFF;  // first part of 16 bits color
00267     command[2] = ((green6 << 5) + (blue5 >>  0)) & 0xFF;  // second part of 16 bits color
00268     writeCOMMAND(command, 3);
00269 }
00270 
00271 //****************************************************************************************************
00272 void uLCD_4DGL :: putc(char c)      // place char at current cursor position
00273 //used by virtual printf function _putc
00274 {
00275     char command[6] ="";
00276     if(c<0x20) {
00277         if(c=='\n') {
00278             current_col = 0;
00279             current_row++;
00280             command[0] = MOVECURSOR; //move cursor to start of next line
00281             command[1] = 0;
00282             command[2] = current_row;
00283             command[3] = 0;
00284             command[4] = current_col;
00285             writeCOMMAND(command, 5);
00286         }
00287         if(c=='\r') {
00288             current_col = 0;
00289             command[0] = MOVECURSOR; //move cursor to start of line
00290             command[1] = 0;
00291             command[2] = current_row;
00292             command[3] = 0;
00293             command[4] = current_col;
00294             writeCOMMAND(command, 5);
00295         }
00296         if(c=='\f') {
00297             uLCD_4DGL::cls(); //clear screen on form feed
00298         }
00299     } else {
00300         command[0] = PUTCHAR;
00301         command[1] = 0x00;
00302         command[2] = c;
00303         writeCOMMAND(command,3);
00304         current_col++;
00305     }
00306     if (current_col == max_col) {
00307         current_col = 0;
00308         current_row++;
00309         command[0] = MOVECURSOR; //move cursor to next line
00310         command[1] = 0;
00311         command[2] = current_row;
00312         command[3] = 0;
00313         command[4] = current_col;
00314         writeCOMMAND(command, 5);
00315     }
00316     if (current_row == max_row) {
00317         current_row = 0;
00318         command[0] = MOVECURSOR; //move cursor back to start
00319         command[1] = 0;
00320         command[2] = current_row;
00321         command[3] = 0;
00322         command[4] = current_col;
00323         writeCOMMAND(command, 5);
00324     }
00325 }
00326 
00327 
00328 //****************************************************************************************************
00329 void uLCD_4DGL :: puts(char *s)     // place string at current cursor position
00330 {
00331 
00332     text_string(s, current_col, current_row, current_font, current_color);
00333 
00334     current_col += strlen(s);
00335 
00336     if (current_col >= max_col) {
00337         current_row += current_col / max_col;
00338         current_col %= max_col;
00339     }
00340     if (current_row >= max_row) {
00341         current_row %= max_row;
00342     }
00343 }